North Korea has launched a trio of missiles in recent weeks and
tested a bomb that was its most powerful to date.

Trump also says long gas lines are forming in North Korea,
calling it "too bad." New U.N. sanctions cut oil exports to North
Korea.

The White House says Trump and Moon are committed to continuing
to take steps to strengthen deterrence and defense capabilities,
and maximize economic and diplomatic pressure on North Korea.
They plan to meet this week at the U.N. General Assembly.